# Piston vs SAL

The clearest difference is update cadence: Piston at monthly against SAL's every 2 months. Piston also leads on device support (4 vs 1). SAL's advantage is iOS requirement (10.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Piston ships an update monthly, SAL every 2 months. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Piston | SAL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/piston/id1146341747/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 113 MB | 11 MB |
| Requires iOS | 16.0 | **10.0** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Super Jump Pty Ltd](https://appshunter.io/developer/892303095) | [Swimming Australia Limited](https://appshunter.io/developer/1278065225) |

## What reviewers say

### Piston

[App page](https://appshunter.io/ios/app/piston/id1146341747)

This app facilitates learning and knowledge transfer during training and performances through multi-camera video analysis. It allows for capturing, reviewing, and annotating video from up to 16 cameras simultaneously, with options for live streaming and data export.

**Highlights:** 4K multi-camera capture, Up to 16 cameras simultaneously, Real-time annotation and markup, Drawing tools for highlighting, Live streaming and AWS S3 upload, Live Opta data import

**In-app purchases:** none


### SAL

[App page](https://appshunter.io/ios/app/sal-the-locker/id1472111135)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Piston free?

Piston is free to download, with no in-app purchases.

### Is SAL free?

SAL is free to download, with no in-app purchases.

### Do Piston or SAL have ads?

Neither Piston nor SAL shows ads.

### Which is updated more often, Piston or SAL?

Piston ships an update monthly, and SAL every 2 months. Most recently, Piston was updated on September 25, 2026 and SAL on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*